Since 2015, US government announced the Precision Medicine Initiative, the concept of“precision medicine” is spreading rapidly, which has seemingly become the mainstream of future medicine.Laboratory medicine based on personalized information brought by the development of precision medicine will be an entirely new area, however its complexity is far beyond the current knowledge and laboratory medical scientists are encouraged to be actively involved in this emerging field.Opportunities and challenges may coexist, which mainly include: screening and evaluation of circulating biomarkers, selection and standardization of appropriate molecular diagnostic techniques, acquisition of high quality biological specimens and establishment of sample library, and comprehensive interpretation of the results in order to achieve and improve individualized precise prevention, diagnosis, and treatment for specific diseases and patients.

Objective To comprehend the clinical characteristics and treatment of AIDS patients,and provide the basic information for prompt diagnosis of AIDS cases.Methods To analyze the clinical data of 15 AIDS patients identified by western blot test.Results 80\^0% of the AIDS patients acquired HIV through sexual contact,and the common clinical menifestations of them were loss of weight(80\^0%),fever(73\^3%),pneumonia(66\^7%)and diarrhea(26\^7%).The duration from emerging clinical symptoms to definitive diagnosis among them was long.The patients were more frequently accompanied by co infection with various pathogens.The efficacy of solely using anti bacterium therapy was usually poor,and all around treatment was effective(66\^7%).Conclusion Physicians should be alert of the occurrence of AIDS.Anti HIV antibody should be promptly tested for patients of repeating fever,chronic cough and long term diarrhea.The rapid and correct diagnosis and all around treatment are the key of ameliorating state of an illness.

Objective To evaluate the efficacy and tolerability of long-term application of cyclosporin A(CsA) in patients with severe aplastic anemia(SAA).Methods 39 patients with SAA were treated with CsA and androgen.The efficacy at 3-month,6-month,1-year,2-year treatment was evaluated.Main side effects of CsA were assessed.Results An overall response rate to CsA was 45.5% in the patients with SAA.19.1% of patients showed response to the treatment at 3 months,45.0% at 6 months,56.3% at 1 year,83.3% at 2 years,respectively.The early mortality rate in SAA Ⅰ patients was significantly higher than that in SAA Ⅱ patients(P

Objective To explore the clinical characteristics of pancytopenic acute leukemia(PAL) and hyperleukocytic acute leukemia(HAL). Methods 183 patients with primary AL were analyzed retrospectively and divided into three groups according to patients' hemogram. Results Among these patients, 38 cases(20 8%) were PAL(group A), 42 cases(23 0%) were HAL(group B) and 103 cases(56 3%) were generic type(group C). 23 0% cases of acute myeloid leukemia(AML), 56 3% acute promyelocytic leukemia and 16 9% acute lymphoblastic leukemia( ALL) appeared PAL. The manifestations of group A were mainly milder infiltration of extra-bone marrow, more severe cytopenias. The early mortality, short and long-term effectiveness were similar to those of group C. 23 8% AML, 51 2% acute monoblastic leukemia and 18 6% ALL presented HAL. There were higher tumor burden,obviously infiltration of extra-bone marrow, higher early mortality, more refractory treatment, poorer prognosis in group B as compared with group A or C. Conclusions Pancytopenia or hyperleukocytosis were common manifestations in primary AL. It is important to understand these features of patients' hemogram for diagnosis, treatment and prognosis evaluation of leukemia.

Objective To study P300 wave extraction by a new method. Methods According to the respective characteristics of the brain electrical signal and the signal analysis method, the algorithm by Wavelet Transformation (WT) combined with Independent Component Analysis (ICA), abbreviated to WICA, was applied to P300 wave extraction. Results With WT, the target component of the signal could be strengthened, while the non-target component and the noise were weakened which became weak in multi -channel ICA input signal, and then WICA algorithm could effectively separate strong target component. Conclusion WICA algorithm behaves well in P300 wave extraction.

Aim To investigate the protective effect of RTP1,one of the polysaccharide isolated from Rheum tanguticum,on H2O2 induced apoptosis in IEC-6 cells and its possible mechanism.Methods H2O2(100 mmol?L~-1)was used to induce IEC-6 cell apoptosis.Different doses(10,30,100 mg?L~-1)of RTP1 were administrated before H2O2 was added into IEC-6 cell culture.Cell viability was observed by MTT assay.Reactive oxygen species were measured with laser scanning confocal microscopy(LSCM).DNA content and percentage of apoptosis were assayed by DNA agarose gel electrophoresis,acridine orange staining and flow cytometry.The activation of Caspase-3 was detected with Western blot analysis.Results Following treatment with H2O2 for 2 h,H2O2 induced a significant decrease in cell viability,while DNA ladder was observed and apoptosis percentage was as high as 31.3%.Accumulation of intracellular ROS and increase in Caspase-3 activity were also detected.Pretreatment with RTP1 for 24 h exhibited cytoprotective effects in a dose-dependent manner.RTP1 obviously enhanced cell viability,reduced formation of DNA ladder and significantly reduced the number of cells labeled with Annexin V.The percentage of apoptosis/necrosis cells was markedly decreased to 24.4% and 21.5%,respectively.LSCM showed that RTP1 attenuated the accumulation of ROS.The significant decrease in Caspase-3 activity was detected.Conclusion RTP1 has cytoprotective capacity to antagonize H2O2-induced IEC-6 cell apoptosis and injury,and this effect may be related to decrease ROS and inhibit Caspase-3 activity

Through the study on traditional Chinese medicine (TCM) data mining methods, the traditional mining model was revealed to have certain limitations. New ways and means should be searched in order to tap the potential, deep level and greater value of TCM knowledge. In view of the situation, advantages of strategy pattern thought for medicine data mining were discussed. And deep research was carried on. New ideas on TCM data mining based on strategy pattern was proposed.

Objective To compare the image quality between large dose smart tracking technique and low dose test bolus technique for gem spectral CT pulmonary angiography(CTPA).Methods A total of 106 cases with suspected pulmonary embolism were divided into two groups.Group A(54 cases)was carried out with large dose smart tracking technique.Group B(52 cases)was carried out with low dose test bolus technique.We compared the image quality between the two groups.Results There were significant differences in the CT value of the right pulmonary artery and the content of iodine in the lower lobe of the right pulmonary artery of two groups(P<0.01).There was significant difference of image quality between the two groups(P<0.05).The rate of excellent or good image quality in group A was higher than that in group B,and the difference was statistically significant(P<0.05).Conclusion Large dose smart tracking technique can track the artifacts of pulmonary artery imaging with less artifacts and uniform vascular fixation.The image quality of pulmonary artery imaging is better than that of small dose contrast agent.

Objective To investigate the effect of combination of topiramate,sodium valproate and clonazepam on intractable epilepsy.Methods 157 Patients with intractable epilepsy were treated with clonazepam,sodium valproate and topiramate.They were followed up for 2 years.Results The total efficiency is 75.16% 6 months after treatment,which was steady in the latter time and reliable for various types of attack,with few side-effects.Conclusion Combination of topiramate,sodium valproate and clonazepam is effective and safe on intractable epilepsy.

Objective To investigate the etiologic roles of apoptosis-associated genes,environmental factors and their interactions in lumbar disc herniation (LDH).Methods A case-control trial was conducted.We recruited 128 outpatients with LDH as case group and 132 normal people matched by age and gender as control group.Peripheral venous blood samples were collected and DNA was extracted from leukocytes.By using a modified Brucker Autoflex MALDI-TOF mass spectrometer,we analyzed 3 genes with 9 polymorphic sites,namely,Fas-1377G/A rs2234767,Fas-670G/A rs1800682,Fas rs2147420,Fas rs2296603,Fas rs7901 656,Fas rs1 57101 9,FasL-844C/T rs7631 10,CASP-9-1263A > G rs4645978,and CASP-9-712C > T rs4645981.The correlations between polymorphism of Fas,FasL and CASP-9 genes and the risk of LDH were evaluated by non-conditional Logistic regression model.Multiple Logistic regression model was performed to assess the interaction between apoptosis-associated genes and environment factors,such as lumbar vertebral loads,bed type,spare-time exercises and spare-time activities. Results There were preferable balances in case and control groups in age and gender without significant differences.However,the two groups differed significantly (P <0.05)in lumbar vertebral loads,body mass index, bed type, spare-time exercises and spare-time activities. Correlation analysis showed remarkable correlations between LDH and the polymorphisms of FasL-844C/T (rs7631 10)and CASP-9-1263A>G (rs4645978),and FasL-844C/T TT and CASP-9-1263A>G GG genotypes might be the high risk genotypes of LDH.The gene-environment interaction analysis revealed that super-multiplicative and sub-multiplicative interactions respectively between FasL-844TT genotype and lumbar vertebral loads (3-4 level),and between CASP-9-rs4645978 GG and lumbar vertebral loads (3-4 level).Conclusion FasL,CASP-9 genes and lumbar vertebral loads and their interactions play important roles in the pathogenesis of LDH.It suggests that the risk of LDH may be codetermined by environmental factors and inherited susceptibility genes,and that the mechanisms of interactions vary in different genotypes and the same or different environmental factors.